Mullion



June 7, 1949. c. KUNEY ET AL 2,472,162

' MULLION Filed March 1, 1946 F (a. 4 v \QVENTORS @mw B c' alll Q14 2Fuu a ATTORNEYS Patented June 7, 1949 2,472,162 MULLION Clarence F.Kuney, Howard J. Wurst, and Roland J. Serzow, Waukesha, Wis., assignorsto Crittall-Federal, Inc., Waukesha, Wis., a corporation of WisconsinApplication March 1, 1946, Serial No. 651,120

3 Claims.

The invention relates to sash and more particularly a mullion used injoining window sash, usually steel, together.

Heretofor various forms of mullions have been used, but the best ofthese are objectionable because they are composed of three or fourseparate pieces and necessitate the use of several distinct tools forinstallation. The object of this invention is to provide a mullion inwhich there is only one piece to handle, and this requires the use ofbut one tool.

A further object of the invention is to provide a mullion in which theclamping means is so constructed and arranged relative to the centerpiece of the mullion as to permit a wide range of adjustment of theadjoining sash units secured together by the mullion.

The invention further consists in the several features hereinafterdescribed and more particularly defined by claims at the conclusionhereof.

In the drawings:

Fig. 1 is a back view of a mullion embodying the invention showing itassembled with adjoining sash units, parts being broken away;

Fig. 2 is an enlarged back view of the mullion embodying the invention;

Fig. 3 is a detailed horizontal sectional view taken on the line 33 ofFig. 2;

Fig. 4 is a detailed vertical sectional View taken on the line 4-4 ofFig. 2;

Fig. 5 is a detailed view similar to Fig. 2, showing the mullion in adifferent operating position.

Referring to the drawings, the mullion herein consists of a center piece6 preferably a steel T-bar and a plurality of clamping members 1. Eachclamping member 1 comprises a fiat rectangular steel bar 8 carrying aset screw 9 adjustably mounted in one end thereof.

The T-bar 6 has its web l0 provided at spaced intervals with elongatedopenings II, the upper sides l2 of which form a fulcruming surface.

With the above construction, the mullion center piece 6 is positioned soas to have its base flanges l3 in abutting engagement with the adjoiningsides of the sash units [4, and then the bars 8 are passed through theopenings II and the screws 9 turned down into engagement with theadjacent sash as shown in Fig. 3. In doing this it will be observed thatthe edge or surface l2 acts as a fulcrum about which the bar 8 can swingand that tightening the screw 9 brings said bar into engagement withsaid fulcruming surface and causes the other end of the bar 1 to swingdown into clamping engagement with the other sash unit. This is a singlebar or clamp and with its screw simultaneously clamps the adjacent sashunits against the inner faces of the T-bar, and only a screwdriver incase of a screw or wrench in case of a headed screw or bolt is necessaryto secure the clamp in position, so that the other hand of the operatoris free to position the parts. As shown in Fig. 1, several of theclamping members are used to make the complete joint, the members beingspaced the desired distance apart. Thus it will be noted that theclamping means comprises but a single part to be handled and that onlyone tool is necessary to secure this part in operative position. It isalso to be noted that the elongation of the opening ll permits the bar Ito be positioned at different angles relative to the T-bar withouteffecting its clamping action and that this permits a wide range ofadjustment of the adjoining sashes, one position being shown in Fig. 2and the other much closer positionbeing shown in Fig. 5.

We desire it to be understood that this invention is not to be limitedto any particular form or arrangement of parts except in so far as suchlimitations are included in the claims.

What we claim as our invention is:

1. In a mullion, the combination of a T-bar center piece having anopening in its web providing a fulcrum, a clamp bar fulcrumed in saidopening and having one end clampingly engaging a sash frame member tothe base of the T-bar, and a threaded member adjustably carried by theother end of the clamp bar to clampingly engage the other sash frame andthe base of the T-bar.

2. In a mullion, the combination of a T-bar center piece having anelongated opening in its Web providing an extended fulcruming surface, aclamp bar fulcrumed on said surface to engage at one end with a sashmember to clamp it between said bars, and a movable member adjustablycarried by the other end of the clamp bar to engage at this end with theother sash member to clamp the same between said bars.

3. In a mullion, the combination of a center T-bar having an opening inits web providing a fulcrum, a clamp bar fulcrumed in said opening andhaving one end clampingly engaging a sash frame member to the center barand the other end provided with an adjustable member clampingly engagingthe other sash frame to the center bar.

CLARENCE F. KUNEY. HOWARD J. WURST. ROLAND J. SERZOW.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 260,871 Hyde July 11, 18821,157,827 Wardwell Oct. 26, 1915

